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ינואר 01, 2013
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Date:25חמישיאוקטובר 2018סימפוזיונים
Bose-Einstein condensation of photons
More information שעה 11:15 - 12:30מיקום בניין הפיזיקה ע"ש עדנה וק.ב. וייסמןמרצה Martin Weitz
Institut für Angewandte Physik, Universität Bonnמארגן הפקולטה לפיזיקהצרו קשר תקציר Show full text abstract about Bose-Einstein condensation has been observed in several phys...» Bose-Einstein condensation has been observed in several physical systems, including cold atomic gases, exciton-polaritons, and magnons. Photons usually show no Bose-Einstein con-densation, since for Planck’s blackbody radiation the particle number is not conserved and the photons at low temperatures vanish in the system walls. I here describe experiments with a dye-filled optical microresonator experimentally observing Bose-Einstein condensation of pho-tons. Thermalization is achieved in a number conserving way by repeated absorption re-emission cycles on the dye molecules, and the cavity mirrors provide both an effective photon mass and a confining potential. More recently, we have investigated calorimetric properties of the trapped photon gas, and determined both the heat capacity and the entropy around the phase transition. In other work, we have realized lattice potentials for photons in the dye mi-crocavity. In my talk, I will begin with a general introduction and give an account of current work and future plans of the Bonn photon gas experiment. -
Date:25חמישיאוקטובר 2018הרצאה
Hierarchical dynamics of visual inference
More information שעה 12:30 - 12:30מיקום בניין לחקר המוח על-שם נלה וליאון בנוזיומרצה Prof. Jochen Braun
Institute of Biology Otto-von-Guericke Unversity, Magdeburgמארגן המחלקה למדעי המוחצרו קשר תקציר Show full text abstract about Visual input is noisy, variable, and ambiguous. Optimal inf...» Visual input is noisy, variable, and ambiguous. Optimal inference of physical causes is challenging even for a restricted set of causes (e.g., orientations and spatial frequencies). It is well understood (e.g., Veliz-Cuba et al., 2016) that stochastic dynamical systems can approximate optimal inference by continuously accumulating and evaluating visual evidence. I will argue that the dynamics of multi-stable perception is consistent with just such an inference mechanism. Its psychophysically observable characteristics fully constrain a hierarchical dynamics with three levels, the lowest of which may conceivably correspond to cortical columns or clusters of columns. Given suitable inputs, this hierarchical dynamics accumulates and evaluates noisy evidence to make nearly optimal categorical discriminations. Moreover, its dynamical features seem to afford functional benefits in a volatile world, such as balancing stability and sensitivity of inference.
References:
Cao, Pastukhov, Mattia, Braun (2016) Collective activity of many bistable assemblies reproduces characteristic dynamics of multistable perception. J. Neurosci., 36: 6957-72.
Veliz-Cuba, Kilpatrick, Josic (2016) Stochastic models of evidence accumulation in changing environments. SIAM Review, 58: 264-289.
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Date:25חמישיאוקטובר 2018הרצאה
Development of placenta-derived (PLX) cell therapy- from bench- to bedside
More information שעה 14:00 - 15:00כותרת Special Guest Lectureמיקום בניין ע"ש מקס ולילאן קנדיוטימרצה Dr. Racheli Ofir
Vice President Research & Intellectual Property, {Pluristem, MATAM, Haifaמארגן המחלקה לאימונולוגיה ורגנרציה ביולוגיתצרו קשר תקציר Show full text abstract about PLacental expanded (PLX) cells are placenta-derived, mesench...» PLacental expanded (PLX) cells are placenta-derived, mesenchymal-like adherent stromal cells expanded using a bioreactor system which provides a three dimensional (3D) micro-environment enabling tightly controlled expansion. Accumulated data from multiple in vitro and in vivo experiments indicate that these cells act via a paracrine or endocrine manner to facilitate healing of damaged tissue.
Pluristem’s two lead placenta-derived cell products, PLX-PAD and PLX-R18, are each in clinical development for several indications. PLX-Immune is in non-clinical development stages for Cancer. Data from non-clinical as well as clinical studies will be presented. -
Date:25חמישיאוקטובר 2018הרצאה
Pelletron meeting - by invitation only
More information שעה 16:00 - 17:30צרו קשר -
Date:28ראשוןאוקטובר 201802שישינובמבר 2018אירועים אקדמיים
International Board SAAC Review
More information שעה כל היוםצרו קשר -
Date:28ראשוןאוקטובר 201801חמישינובמבר 2018מועצת המנהלים הבינלאומית
SAAC meeting
More information שעה כל היוםכותרת ישיבות הועדה המדעית האקדמית המייעצת, 2018צרו קשר -
Date:28ראשוןאוקטובר 2018כנסים
Pre SAAC Symposium on Recent Progress in Chemistry and in Advanced Materials
More information שעה 08:30 - 16:30מיקום מרכז כנסים על-שם דויד לופאטייושב ראש Jacob Kleinדף בית -
Date:28ראשוןאוקטובר 2018הרצאה
Pre-SAAC Symposium on High Energy Physics
More information שעה 10:00 - 15:45מיקום בניין הפיזיקה ע"ש עדנה וק.ב. וייסמןמרצה Prof. Beate Heinemann, Prof. Joanna Stachel, Prof. Marumi Kado, Prof. Michael Dine, Prof. Michelangelo L. Mangano מארגן הפקולטה לפיזיקהצרו קשר -
Date:28ראשוןאוקטובר 2018הרצאה
Interactive Microscopy Image Analysis with IMARIS
More information שעה 10:30 - 10:30מיקום בניין ע"ש מקס ולילאן קנדיוטימרצה Georgia Golfis
BITPLANEמארגן המחלקה לתשתיות מחקר מדעי החייםצרו קשר -
Date:28ראשוןאוקטובר 2018הרצאה
Convergence of hunger and thirst in the insular cortex
More information שעה 11:00 - 11:00מיקום בניין ארתור ורושל בלפר למחקר ביורפואימרצה Dr. Yoav Livneh
Beth Israel Deaconess Medical Center and Harvard Medical Schoolמארגן המחלקה למדעי המוחצרו קשר -
Date:28ראשוןאוקטובר 2018הרצאה
Ozone waves in the stratosphere and the early winter mid-latitude QBO signal
More information שעה 11:00 - 11:00מיקום בניין משפחת זוסמןמרצה Vered Silverman
Earth and Planetary Sciences Weizmann Institute of Scienceמארגן המחלקה למדעי כדור הארץ וכוכבי הלכתצרו קשר -
Date:28ראשוןאוקטובר 2018הרצאה
Unravelling the tumor immune microenvironment by multiplexed imaging
More information שעה 15:00 - 15:00מיקום בניין ארתור ורושל בלפר למחקר ביורפואימרצה Dr. Leeat Yankielowicz-Keren
Department of Pathology, School of Medicine, Stanford Universityמארגן המחלקה לאימונולוגיה מערכתית , המחלקה לביולוגיה מולקולרית של התא , המחלקה לגנטיקה מולקולריתצרו קשר -
Date:28ראשוןאוקטובר 2018הרצאה
Ultrahigh Field MR Imaging in the Mesosphere Where Physics, Life Sciences, Computer Sciences and Medicine Meet
More information שעה 16:30 - 17:30מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Thoralf Niendorf
Berlin Ultrahigh Field Facility (B.U.F.F.), Max-Delbrueck Center for Molecular Medicineמארגן המחלקה לכימיה מולקולרית ולמדע חומריםצרו קשר תקציר Show full text abstract about The development of ultrahigh field magnetic resonance (UHF-M...» The development of ultrahigh field magnetic resonance (UHF-MR) is moving forward at an amazing speed that is breaking through technical barriers almost as fast as they appear. UHF-MR has a staggering number of potential uses in neuroscience, neurology, radiology, cardiology, internal medicine, physiology, oncology, nephrology, ophthalmology and other related clinical fields. With over 50,000 MR examinations already performed at 7.0 Tesla, the reasons for moving UHF-MR into clinical applications are more compelling than ever. The value UHF-MR has already proven itself many times over at lower field strengths; now 7.0 T has opened a window on tissues, organs, and (patho)physiological processes that have been largely inaccessible in the past. Images from these instruments have revealed new aspects of the anatomy, functions and physio-metabolic characteristics of the brain, heart, joints, kidneys, liver, eye, and other organs/tissues, at an unparalleled quality. 50,000 sounds like a large number, but in fact we have barely cracked open the door and have yet to truly assess what lies on the other side. To this end this presentation documents advances and progress of UHF-MR with the goal to engage the interest of clinical adopters, basic scientists, engineers, and translational researchers from many areas. To meet this goal the traits, challenges and opportunities for discovery of human UHF-MRI will be surveyed. The considerations run from technical advances to early clinical applications. Examples of UHF-MR strategies are demonstrated. Their added value over the kindred counterparts at lower fields is explored along with an outline of research promises. Encouraging developments into enabling multiple channel radiofrequency (RF) antennae concepts (Figure 1) are reviewed. Frontier applications of MR at 7.0 T are surveyed including cardiac imaging (Figure 1), ophthalmic MRI and high spatial resolution MRI of the brain. Heteronuclear UHF-MR applications are explored with a focus on in vivo mapping of electrolytes including potassium MRI and sodium MRI (Figure 1). Practical obstacles of UHF MR are outlined including MR safety. Insights into RF heating induced by conductive stents and implants are provided. Current trends in UHF-MR are considered together with their clinical implications. A concluding section ventures a glance beyond the horizon including explorations into Extreme Field MR (EF-MR) which envisions human MR at 20 Tesla, which is an important leap of the imagination because it aims to fill a crucial "resolution gap" in our understanding of human biology (39, 40). It is the speakers hope that this presentation will convey the seeds of this vision and inspire the audience to become pioneers in these amazingly promising new areas of biomedical research: ultrahigh field and extreme field MR.. -
Date:29שניאוקטובר 201801חמישינובמבר 2018אירועים אקדמיים
International Board SAAC Review
More information שעה כל היוםצרו קשר -
Date:31רביעיאוקטובר 2018הרצאה
Developmental Club Series 2018-2019
More information שעה 10:00 - 10:00כותרת “Mapping vascular formation and function in health and disease”מיקום בניין קמיליה בוטנארמרצה Prof. Karina Yaniv מארגן המחלקה לגנטיקה מולקולריתצרו קשר -
Date:31רביעיאוקטובר 2018הרצאה
G-INCPM - Special Seminar - Prof. Ofer Feinerman, Dept. of Physics of Complex Systems, Weizmann - "Managing information over multiple organizational scales"
More information שעה 11:00 - 12:15מיקום המרכז הישראלי הלאומי לרפואה מותאמת אישית על-שם ננסי וסטיבן גרנדצרו קשר תקציר Show full text abstract about A main adaptive advantage of social insects is their ability...» A main adaptive advantage of social insects is their ability to concurrently probe multiple locations while gathering information over scales that are much larger than that of a single individual. Collecting information is, however, only the first step since information fragments must be fused to yield collective action. This information aggregation process is far from trivial and can teach us about the tensions between individual and group and how these might be resolved in an effective manner. This talk will discuss several examples for such tensions and their resolution in the context of cooperative transport by longhorn crazy ants: collectively accumulated information vs. updated individual information, large scale information required for effective action vs. small scale information available to individuals, and group level consensus from conflicting individual information. All these examples point towards information collection and aggregation schemes that utilize the advantages of large groups without compromising the valuable information gathered by each individual. -
Date:31רביעיאוקטובר 2018הרצאה
Transmission of Memories Across Generations
More information שעה 12:30 - 12:30מיקום אולם הרצאות ע"ש גרהרד שמידטמרצה Prof. Oded Rechavi
Dept of Neurobiology, Wise Faculty of Life Sciences and Sagol School of Neuroscience, Tel Aviv Universityמארגן המחלקה למדעי המוחצרו קשר תקציר Show full text abstract about In C.elegans nematodes small RNAs enable transmission of epi...» In C.elegans nematodes small RNAs enable transmission of epigenetic responses across multiple generations. The mechanism that allows small RNA inheritance in the germline is being elucidated, and multiple factors, which are needed for this type of epigenetic inheritance per se have been identified. Different environmental conditions, including exposure to viruses, starvation, and heat stress generate heritable small RNA responses. It is still unclear whether endogenous small RNAs, similarly to exogenous small RNAs, can move between cells, and from the soma to the germline (breaching the “Weismann barrier, and allowing inheritance). We are interested in the provocative possibility that heritable small RNA responses can alter the progeny’s behavior, by altering the function of the worm’s nervous system. I the seminar I will discuss our recent findings, ideas, and theories. -
Date:01חמישינובמבר 2018הרצאה
Current techniques to detect and isolate a wide spectrum of biomolecules (from single molecules to nanoparticles)
More information שעה 09:00 - 10:00מיקום בניין ע"ש מקס ולילאן קנדיוטימרצה Dr. Yael Fridmann Sirkis
Protein Analysis Unit Department of Life Sciences Core Facilitiesמארגן המחלקה לתשתיות מחקר מדעי החייםצרו קשר -
Date:04ראשוןנובמבר 201807רביעינובמבר 2018מועצת המנהלים הבינלאומית
הכינוס השנתי ה-70 של המועצה הבינלאומית
More information שעה כל היוםמיקום מרכז כנסים על-שם דויד לופאטיצרו קשר -
Date:04ראשוןנובמבר 2018הרצאה
DWEK Workshop on Children & Cancer
More information שעה 08:00 - 17:00כותרת See Conferencesמיקום בניין ע"ש מקס ולילאן קנדיוטימרצה Prof. Ayelet Erez מארגן המחלקה לאימונולוגיה ורגנרציה ביולוגיתצרו קשר
